import { ComputedRef, Ref, UnwrapRef } from 'vue';
declare function useSingleton<T>(key: string): T;
declare function useSingleton<T>(key: string, factory: () => T): T;
declare function useSingletonRef<T>(key: string): Ref<UnwrapRef<T>>;
declare function useSingletonRef<T>(key: string, factory: () => T): Ref<UnwrapRef<T>>;
declare function useSingletonComputed<T>(key: string): ComputedRef<T>;
declare function useSingletonComputed<T>(key: string, factory: () => T): ComputedRef<T>;
type Lazy<T> = {
    value: T;
};
declare function useLazy<T>(factory: () => T): Lazy<T>;
declare function useLazy<T>(key: string, factory: () => T): Lazy<T>;
declare function useLazyRef<T>(factory: () => T): Lazy<Ref<UnwrapRef<T>>>;
declare function useLazyRef<T>(key: string, factory: () => T): Lazy<Ref<UnwrapRef<T>>>;
declare function useLazyComputed<T>(factory: () => T): Lazy<ComputedRef<T>>;
declare function useLazyComputed<T>(key: string, factory: () => T): Lazy<ComputedRef<T>>;
export { useSingleton, useSingletonComputed, useSingletonRef, useLazy, useLazyComputed, useLazyRef };